Retractable curtain rail

ABSTRACT

The present invention discloses a retractable curtain rail. including a guiding rail body, wherein the guiding rail body includes an external guiding rail, an internal guiding rail and a transmission case, the internal guiding rails are configured to be two pieces and respectively inserted at both ends of the external guiding rail, which is connected with the internal guiding rails by means of a connector, and the transmission cases are configured to be two pieces and respectively fixed on the ends of the two internal guiding rails, a driving wheels is movably connected inside the two transmission boxes, respectively, a transmission belt is connected between the two driving wheels, the transmission belt is fixedly connected with two curtain heads. The retractable curtain rail has following beneficial effects.

FIELD OF THE INVENTION

The invention relates to the technical field of curtain rails, inparticular to a retractable curtain rail.

BACKGROUND OF THE INVENTION

A motor-driven curtain is a means that is wirelessly controlled with amotor driving the curtain, and the main components of which include acurtain, a guiding rail and an electric motor. A belt transmissionsystem and a plurality of slidable curtain-hinging pieces are arrangedinside the guiding rail. During use, the motor drives the belttransmission system to enable the end of the curtain to move with thelatter, and the curtain-hinging pieces move with the movement of the endof the curtain, so as to finally enable the curtain to stretch out anddraw back.

In the prior art, the guiding rail of the motor-driven curtain isrequired to first measure the width of the window along the wallsurface, and then make the guiding rail of the curtain according to thecorresponding size from the above measurement. The guiding rail of thecurtain is made in such a complex process as waste time and effort,worsen applicability and need a further improvement.

SUMMARY OF THE INVENTION

In order to solve the above problem, the present invention provides aretractable curtain rail, in which an external guiding rail and aninternal guiding rail are configured to be plugged into each other, anda connector is used to enable the external guiding rail and the internalguiding rail to connect with each other, and the plugging depth to beadjusted according to requirements, so as to control the total length ofthe guiding rail body and facilitate the suitability for the wall andwindow both with different widths. Compared with the customized guidingrail, the installation is simpler and saves time and effort, so as tosolve the problem in the prior art that the guiding rail of themotor-driven curtain is required to first measure the width of thewindow along the, wall surface, and then make the guiding rail of thecurtain according, to the corresponding the size from the abovemeasurement, and the guiding rail of the curtain is made in such acomplex process as waste time and effort, worsen applicability and needa further improvement.

In order to achieve the above object, the present invention provides thefollowing technical solutions: a retractable curtain rail, comprising aguiding rail body, wherein the guiding rail body includes an externalguiding rail, an internal, guiding rail and a transmission case, theinternal guiding rails are configured to be two pieces and respectivelyinserted into both ends of the external guiding rail, which is connectedwith the internal guiding rails by means of a connector, and thetransmission cases are configured to be two pieces and respectivelyfixed on the ends of the two internal guiding rails, a driving wheels ismovably connected inside the two transmission boxes, respectively, atransmission belt is connected between the two driving wheels, thetransmission belt is fixedly connected with two curtain heads, thebottom of the guiding rail body is further slidably connected with aplurality of curtain-hinging pieces.

Preferably, the external guiding rail, includes two externalgroove-shaped ribs symmetrically distributed, between which a firstconnecting rib is fixedly connected.

Preferably, the internal guiding rail includes two internalgroove-shaped ribs symmetrically distributed, between which a secondconnecting rib is fixedly connected, the inner bottom walls of the twointernal groove-shaped ribs are both provided with a lower positioningplates, the second connecting rib includes a transverse plate and twoupper positioning plates, the two upper positioning plates are fixedlyarranged at the bottom of the transverse plate.

Preferably, the connector includes a sleeved housing, the two ends ofwhich are respectively sleeved with the external guiding rail and theinternal guiding rail, the bottom of the sleeved housing is providedwith a recess, the inner wall of which is fixedly connected with ajamming block, a first limit block is fixedly connected to the inner topwall of the sleeved housing close to the internal guiding rail, a secondlimit block is fixedly connected to the inner top wall of the sleevedhousing close to the external guiding rail, the top surface of thesleeved housing is provided with a first connecting screw (66).

Preferably, one end of the transmission case close to the internalguiding rail is provided with a connecting groove, the inner wall ofwhich has two through holes communicating with the inner cavity of thetransmission case and is further fixedly connected with a positioningridge.

Preferably, the transmission belt penetrates the inner cavity of theexternal guiding rail and the inner cavity of the internal guiding railand extends to the inside of the transmission case through the throughhole.

Preferably, the curtain head includes a base plate, which is fixedlyconnected with the transmission belt, an installation plate is fixedlyconnected to one side of the base plate, both ends of the base plate areprovided with a transverse guiding wheel and a longitudinal guidingwheel, both the transverse guiding wheel and the longitudinal guidingwheel are movably connected to the base plate.

Preferably, the curtain-hinging piece includes a connecting plate apulley is movably connected to the top of the connecting plate.

Preferably, the top of the guiding rail body is provided with aninstallation buckle, which includes a movable piece, two inclinedjamming strips are fixedly connected to the bottom of the movable piece,on the surface of which an installation hole is arranged, and on bothends of which second connecting screws are arranged.

The embodiments of the present invention have the following advantages:

1. The external guiding rail and the internal guiding rail areconfigured to be plugged into each other, and the connector is used toenable the external guiding rail and the internal guiding rail toconnect with each other, and the plugging depth to be adjusted accordingto requirements, so as to control the total length of the guiding railbody and facilitate the suitability for the wall and window both withdifferent widths. Compared with the customized the guiding rail, itsinstallation saves time and effort.

2. The guiding rail body is configured to be a combination of oneexternal guiding rail and two internal guiding rails, which can unifythe structure of the transmission cases at both ends, and reduces costsin production and processing, and the curtain-driving motor can beinstalled in any one of the two transmission cases according torequirements with good applicability.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of thepresent invention or the prior art more clearly, the drawings needing tobe used in the descriptions of the embodiments or the prior art arebriefly introduced hereinafter. Obviously, the drawings in the followingdescriptions are only exemplary, and for those of ordinary skills in theart, other drawings may also be derived and obtained based on theprovided drawings without going through any creative work.

The structure, scale, size, etc. shown in the specification are onlyused to match with the contents disclosed in the specification for thoseskilled in the art to understand and read, and are not used to limit theexecutable limiting conditions of the present invention, thus having nosubstantive significance in technology. Any structural modification,change of scale relationship, or adjustment of size should still fallwithin the scope covered by the technical contents disclosed in thepresent invention without affecting the effect and the goal achieved bythe present invention.

FIG. 1 is a schematic view of the overall structure of the presentinvention.

FIG. 2 is an exploded view of the overall structure of the presentinvention.

FIG. 3 is a structure diagram of the curtain head of the presentinvention.

FIG. 4 is a structure diagram of the transmission case of the presentinvention.

FIG. 5 is a cross-sectional view of the transmission case of the presentinvention.

FIG. 6 is a cross-sectional view of the overall structure of the presentinvention.

FIG. 7 is a structure diagram of the connector of the present invention.

FIG. 8 is a structure diagram of the second limit block of the presentinvention.

FIG. 9 is a perspective view of the installation buckle of the presentinvention.

Where, 1-guiding rail body; 11-external guiding rail; 111-externalgroove-shaped rib; 112-first connecting rib; 12-internal guiding rail;121-internal groove-shaped rib; 122-second connecting rib; 123-lowerpositioning plate; 1221- transverse plate; 1222-upper positioning plate;13-transmission case; 131-connecting groove; 132-through hole;133-positioning ridge; 2-driving wheel; 3-transmission belt; 4-curtainhead; 41-base plate; 42-installation plate: 43-transverse guiding wheel;44-longitudinal guiding wheel; 5-curtain-hinging piece; 51-connectingplate; 52-pulley; 6-connector; 61- sleeved housing; 62- recess; 63-jamming block; 64-first limit block; 65-second limit block; 66-firstconnecting screw; 7-installation buckle; 71-movable piece; 72-inclinedjamming strip; 73-installation hole; 74-second connecting screw.

DETAILED DESCRIPTION OF SOME EMBODIMENTS

The embodiment of the present invention is described in the specificexamples as follows, and a person skilled in the art can easilyunderstand other advantages and effects of the present invention fromthe content disclosed in this description, but obviously, the describedexamples are only a part of the embodiments of the present invention,rather than all the embodiments. Based on the examples of the presentinvention, all other examples obtained by a person skilled in the artwithout creative efforts shall fall within the protection scope of thepresent invention.

As shown in FIGS. 1-9 , the present invention provides a retractablecurtain rail, comprising a guiding rail body 1, wherein the guiding railbody 1 includes an external guiding rail 11, an internal guiding rail 12and a transmission case 13, the internal guiding rails 12 are configuredto be two pieces and respectively inserted into both ends of theexternal guiding rail 11, which is connected with the internal guidingrails 12 by means of a connector 6, and the transmission cases 13 areconfigured to be two pieces and respectively fixed on the ends of thetwo internal guiding rails 12, a driving wheels 2 is movably connectedinside the two transmission boxes 13, respectively, a transmission belt3 is connected between the two driving wheels 2, the transmission belt 3is fixedly connected with two curtain heads 4, the bottom of the guidingrail body 1 is further slidably connected with a plurality ofcurtain-hinging pieces 5.

In this embodiment, the external guiding rail 11 and the internalguiding rail 12 are configured to be plugged into each other, and theconnector 6 is configured to enable the external guiding rail 11 and theinternal guiding rail 12 to connect with each other, and the pluggingdepth to be adjusted according to requirements, so as to control thetotal, length of the guiding rail body 1 and facilitate the suitabilityfor the wall and window both with different widths. Compared with thecustomized the guiding rail, its installation saves time and effort.

In order to enable the external guiding rail 11 and the internal guidingrail 12 to be plugged into each other, the device adopts the followingtechnical solution. The external guiding rail 11 includes two externalgroove-shaped ribs 111 symmetrically distributed, between which thefirst connecting rib 112 is fixedly connected, but during actual use,the external groove-shaped ribs 111 and the first connecting ribs 112are integrally formed. The first connecting rib 112 is configured to beU shaped. The internal guiding rail 12 includes two internalgroove-shaped ribs 121 symmetrically distributed, between which thesecond connecting rib 122 is fixedly connected. The inner bottom wallsof the two internal groove-shaped ribs 121 are both provided with thelower positioning plates 123. The second connecting rib 122 includes thetransverse plate 1221 and two upper positioning plates 1222. The twoupper positioning plates 1222 are fixedly arranged at the bottom of thetransverse plate 1221. During actual use, the internal groove-shapedribs 121 and the second connecting rib 122 are integrally formed. Whenthe internal guiding rail 12 is inserted into the external guiding rail11, the top edge of the internal grooved rib 121 extends between theside walls of the external groove-shaped ribs 111 and the firstconnecting rib 112, and the transverse plate 1221 presses close to thebottom of the first connecting rib 112.

In order to enable the external guiding rail 11 and the internal guidingrail 12 to be fixed with each other, the device adopts the followingtechnical solution. The connector 6 includes the sleeved housing 61, thetwo ends of which are respectively sleeved with the external guidingrail 11 and the internal guiding rail 12. The bottom of the sleevedhousing 61 is provided with the recess 62, the inner wall of which isfixedly connected with the jamming block 63. the first limit block 64 isfixedly connected to the inner top wall of the sleeved housing 61 closeto the internal guiding rail 12, and the second limit block 65 isfixedly connected to the inner top wall of the sleeved housing 61 closeto the external guiding rail 11. The top surface of the sleeved housing61 is provided with the first connecting screw 66. During actualinstallation, the second limit block 65 can be just jammed into the topof the first connecting rib 112, the second limit block 65 can just bejammed into the top of the second connecting rib 122, and the jammingblock 63 can just be jammed into the bottom edge of the internalgroove-shaped rib 121.

In order to enable the connection with the internal guiding rail 12, thedevice adopts the following technical solution. One end of thetransmission case 13 close to the internal guiding rail 12 is providedwith the connecting groove 131, the inner wall of which has two throughholes 132 communicating with the inner cavity of the transmission case13 and is also fixedly connected with the positioning ridge 133. Duringactual installation, the end of the internal guiding rail 12 extends tothe inside of the connecting groove 131, the through hole 132 justcommunicates with the inner cavity of the internal guiding rail 12, andthe positioning ridge 133 just extends to the top of the secondconnecting rib 122.

In order to enable two curtain heads 4 to be driven, the device adopts,the following technical solution. The transmission belt 3 penetrates theinner cavity of the external guiding rail 11 and the inner cavity of theinternal guiding rail 12 and extends to the inside of the transmissioncase 13 through the through hole 132. The curtain head 4 includes thebase plate 41, which is fixedly connected with the transmission belt 3,and the installation plate 42 is fixedly connected to one side of thebase plate 41. Both ends of the base plate 41 are provided with thetransverse guiding wheel 43 and the longitudinal guiding wheel 44, andboth the transverse guiding wheel 43 and the longitudinal guiding wheel44 are movably connected to the base plate 41. When the transmissionbelt 3 moves, it can drive the base plate 41 to move, thereby drivingthe curtain to move, and make use of the transverse guiding wheel 43 andthe longitudinal guiding wheel 44 to reduce the friction during themovement of the base plate 41.

In order to enable the curtain to be fixed, the device adopts thefollowing technical solution. The curtain-hinging piece 5 includes aconnecting plate 51, and the pulley 52 is movably connected to the topof the connecting plate 51.

In order to enable the curtain to the guiding rail body 1 to be fixed,the device adopts the following technical solution. The top of theguiding rail body 1 is provided with the installation buckle 7, whichincludes the movable piece 71, and two inclined jamming strips 72 arefixedly connected to the bottom of the movable piece 71, on the surfaceof which the installation hole 73 is arranged, and on both ends of whichthe second connecting screws 74 are arranged.

The present invention is implemented as follows. During implementing thepresent invention. the connector 6 is sleeved on the end of the externalguiding rail 11, to which the internal guiding rail 12 is inserted alongthe connector 6, further into the inside of the external guiding rail11. The internal guiding rail 12 is adjusted with the appropriateinsertion depth according to requirements to limit the total length ofthe guide rail body 1, finally the first connecting screw 66 on theconnector 6 is twisted to enable the connector 6 to fixedly connect theexternal guiding rail 11 and the internal guiding rail 12. In this way,the guiding rail body 1 is adjusted to a length suitable for theinstallation scene, and then the transmission belt 3, the curtain head4, the curtain-hinging pieces and the transmission case 13 arerespectively installed in sequence.

The above description is only preferred embodiments of the presentinvention, and any person skilled in the art may amend the presentinvention by using the technical solutions described above or themodified equivalent technical solutions. Therefore, any simplemodifications or equivalent replacements made according to the technicalsolutions of the present invention fall within the protection scope ofthe present invention.

What is claimed is:
 1. A retractable curtain rail, comprising a guidingrail body (1), wherein said guiding rail body (1) includes an externalguiding rail (11), an internal guiding rail (12) and a transmission case(13), said internal guiding rails (12) are configured to be two piecesand respectively inserted into both ends of said external guiding rail(11), which is connected with said internal guiding rails (12) by meansof a connector (6), and said transmission cases (13) are configured tobe two pieces and respectively fixed on the ends of said two, internalguiding rails (12), a driving wheels (2) is movably connected insidesaid two transmission boxes (13), respectively, a transmission belt (3)is connected between said two driving wheels (2), said transmission belt(3) is fixedly connected with two curtain heads (4), the bottom of saidguiding rail body (1) is further slidably connected with a plurality ofcurtain-hinging pieces (5).
 2. The retractable curtain rail according toclaim 1, wherein said external guiding rail (11) includes two externalgroove-shaped ribs (111) symmetrically distributed, between which afirst connecting rib (112) is fixedly connected.
 3. The retractablecurtain rail according to claim 1, wherein said internal guiding rail(12) includes two internal groove-shaped ribs (121) symmetricallydistributed, between which a second connecting rib (122) is fixedlyconnected, the inner bottom walls of said two internal groove-shapedribs (121) are both provided with a lower positioning plates (123), saidsecond connecting rib (122) includes a transverse plate (1221) and twoupper positioning plates (1222), said two upper positioning plates(1222) are fixedly arranged at the bottom of said transverse plate(1221).
 4. The retractable curtain rail according to claim 1, whereinsaid connector (6) includes a sleeved housing (61), the two ends ofwhich are respectively sleeved with said external guiding rail (11) andsaid internal guiding rail (12), the bottom of said sleeved housing (61)is provided with a recess (62), the inner wall of which is fixedlyconnected with a jamming block (63), a first limit block (64) is fixedlyconnected to the inner top wall of said sleeved housing (61) close tosaid internal guiding rail (12), a second limit block (65) is fixedlyconnected to the inner top wall of said sleeved housing (61) close tosaid external guiding rail (11), the top surface of said sleeved housing(61) is provided with a first connecting screw (66).
 5. The retractablecurtain rail according to claim 1, wherein one end of said transmissioncase (13) close to said internal guiding rail (12) is provided with aconnecting groove (131), the inner wall of which has two through holes(132) communicating with the inner cavity of said transmission case (13)and is further fixedly connected with a positioning ridge (133).
 6. Theretractable curtain rail according to claim 1, wherein said transmissionbelt (3) penetrates the inner cavity of said external guiding rail (11)and the inner cavity of said internal guiding rail (12) and extends tothe inside of said transmission case (13) through said through hole(132).
 7. The retractable curtain rail according to claim 1, whereinsaid curtain head (4) includes a base plate (41), which is fixedlyconnected with said transmission belt (3), an installation plate (42) isfixedly connected to one side of said base plate (41), both ends of saidbase plate (41) are provided with a transverse guiding wheel (43) and alongitudinal guiding wheel (44), both said transverse guiding wheel (43)and said longitudinal guiding wheel (44) are movably connected to saidbase plate (41).
 8. The retractable curtain rail according to claim 1,wherein said curtain-hinging piece (5) includes a connecting plate (51),a pulley (52) is movably connected to the top of said connecting plate(51).
 9. The retractable curtain rail according to claim I, wherein thetop of said guiding rail body (1) is provided with an installationbuckle (7), which includes a movable piece (71), two inclined jammingstrips (72) are fixedly-connected to the bottom of said movable piece(71), on the surface of which an installation hole (73) is arranged, andon both ends of which second connecting screws (74) are arranged.